Functions in MipsCodeEmitter.cpp that expand unaligned loads/stores are dead

code. Removing it.

Patch by Petar Jovanovic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169174 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MipsCodeEmitter.cpp b/lib/Target/Mips/MipsCodeEmitter.cpp
index 52cd217d48ef710d54ee5f6816d593f1e6db3012..6c0eb159dce6f41dfa056de6e4077e942d483f66 100644 (file)
--- a/lib/Target/Mips/MipsCodeEmitter.cpp
+++ b/lib/Target/Mips/MipsCodeEmitter.cpp
@@ -112,12 +112,6 @@ class MipsCodeEmitter : public MachineFunctionPass {
     unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const;
     unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const;
 
-    int emitULW(const MachineInstr &MI);
-    int emitUSW(const MachineInstr &MI);
-    int emitULH(const MachineInstr &MI);
-    int emitULHu(const MachineInstr &MI);
-    int emitUSH(const MachineInstr &MI);
-
     void emitGlobalAddressUnaligned(const GlobalValue *GV, unsigned Reloc,
                                     int Offset) const;
   };
@@ -271,103 +265,6 @@ void MipsCodeEmitter::emitMachineBasicBlock(MachineBasicBlock *BB,
                                              Reloc, BB));
 }
 
-int MipsCodeEmitter::emitUSW(const MachineInstr &MI) {
-  unsigned src = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  // swr src, offset(base)
-  // swl src, offset+3(base)
-  MCE.emitWordLE(
-    (0x2e << 26) | (base << 21) | (src << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x2a << 26) | (base << 21) | (src << 16) | ((offset+3) & 0xffff));
-  return 2;
-}
-
-int MipsCodeEmitter::emitULW(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  if (dst != base) {
-    // lwr dst, offset(base)
-    // lwl dst, offset+3(base)
-    MCE.emitWordLE(
-      (0x26 << 26) | (base << 21) | (dst << 16) | (offset & 0xffff));
-    MCE.emitWordLE(
-      (0x22 << 26) | (base << 21) | (dst << 16) | ((offset+3) & 0xffff));
-    return 2;
-  } else {
-    // lwr at, offset(base)
-    // lwl at, offset+3(base)
-    // addu dst, at, $zero
-    MCE.emitWordLE(
-      (0x26 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-    MCE.emitWordLE(
-      (0x22 << 26) | (base << 21) | (at << 16) | ((offset+3) & 0xffff));
-    MCE.emitWordLE(
-      (0x0 << 26) | (at << 21) | (0x0 << 16) | (dst << 11) | (0x0 << 6) | 0x21);
-    return 3;
-  }
-}
-
-int MipsCodeEmitter::emitUSH(const MachineInstr &MI) {
-  unsigned src = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // sb src, offset(base)
-  // srl at,src,8
-  // sb at, offset+1(base)
-  MCE.emitWordLE(
-    (0x28 << 26) | (base << 21) | (src << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (src << 16) | (at << 11) | (0x8 << 6) | 0x2);
-  MCE.emitWordLE(
-    (0x28 << 26) | (base << 21) | (at << 16) | ((offset+1) & 0xffff));
-  return 3;
-}
-
-int MipsCodeEmitter::emitULH(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // lbu at, offset(base)
-  // lb dst, offset+1(base)
-  // sll dst,dst,8
-  // or dst,dst,at
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x20 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0);
-  MCE.emitWordLE(
-    (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25);
-  return 4;
-}
-
-int MipsCodeEmitter::emitULHu(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // lbu at, offset(base)
-  // lbu dst, offset+1(base)
-  // sll dst,dst,8
-  // or dst,dst,at
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0);
-  MCE.emitWordLE(
-    (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25);
-  return 4;
-}
-
 void MipsCodeEmitter::emitInstruction(const MachineInstr &MI) {
   DEBUG(errs() << "JIT: " << (void*)MCE.getCurrentPCValue() << ":\t" << MI);